Gynae BT 2017

To consider beyond dose constraints and DVH parameters

• Treatment plan evaluation is based on DVH parameters and assessment of spatial dose distribution

• Cooperation of radiation oncologist, clinical physicist and RTT essential

• Important to realize that treatment planning reflects anatomical situation at one moment in time

• Current CTV-ITV-PTV margins take into account anatomical changes of targets but not OAR

• Daily CBCT position verification allows to detect anatomical changes for targets and OAR

• Plan adaption during the course of EBRT can be necessary in case of major anatomical chances

• Adaptive IGRT accounts for these changes in a structured way and will help to improve balance between tumor and OAR dose

• Our knowledge on dose constraints and DVH parameters is constantly improving

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